Based on true events. In the Romanian town of Lupeni August 5, 1929, driven to despair by hard labor conditions miners under the leadership of Communists organized a strike. The miners demanded higher wages and an eight-hour workday. They opposed the government's attempts to shift the entire burden of the economic crisis onto the workers' shoulders. The government, concerned about the scale of the strike and the workers' determination not to give in to their demands, ordered troops to shoot at unarmed people. On August 7, the strike was brutally suppressed. Many workers were killed. But these events have forever gone down in the history of the Romanian labor movement as an example of solidarity, heroism and invincibility of the people.